.page--home_files, .page--training_files, .page--contest_detail, .page--contest_manage, .page--homework_files, .page--contest_edit, .page--problem_edit, .page--problem_config, .page--problem_files .col--checkbox width: 60px .col--size width: 80px .col--operation width: 40px .page--problem_edit, .page--problem_config, .page--problem_files .col--operation width: 60px .problem-sidebar-additional_file, .problem-sidebar-testdata height: 300px overflow-y: auto .rename-confirm-table overflow-x: auto .col--origin, .col--new width: 50% text-align: center